ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,560, issued on Sept. 16, was assigned to Wonderland Switzerland AG (Steinhausen, Switzerland).
"Stroller" was invented by Bruce L. Williams (Narvon, Pa.) and Gregory Sellers (Christiana, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stroller includes a front leg, a rear leg rotatably connected to the front leg, a handle assembly and a locking component. The handle assembly is rotatably connected to one of the front leg and the rear leg. The locking component is movably disposed on the handle assembly. The locking component can be driven to disengage from the one of the front leg and the rear leg for allowing the rotating movement of the hand...